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Finding the Fourth Proportional to 109,656.80, 151,326.64 and 59,355.84

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Solution

The fourth proportional to 109,656.80, 151,326.64 and 59,355.84 is: 81,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,656.80 : 151,326.64 = 59,355.84 : x
  2. Step 2: Convert to fraction form
    109,656.80/151,326.64 = 59,355.84/x
  3. Step 3: Cross multiply
    109,656.80x = 151,326.64 × 59,355.84
  4. Step 4: Simplify right side
    109,656.80x = 8,982,119,831.58
  5. Step 5: Solve for x
    x = 8,982,119,831.58/109,656.80
  6. Step 6: Final answer
    x = 81,911.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.